2016 Mercedes-Benz GLE 350: engine stalls while driving

Filed Sep 23, 2026 · Acceleration, Brakes · NJ

On 8/28/2026, my Mercedes-Benz GLE 350 (W166, M276 engine) experienced a sudden, catastrophic engine stall while driving in active traffic. There was no Check Engine Light (CEL), dashboard warning, or mechanical hesitation prior to the failure. The vehicle instantly lost all propulsion, power steering, and power braking assist, creating an extreme crash hazard and requiring immense physical effort to maneuver the dead vehicle off the roadway. Independent diagnostic teardown by a module specialist confirmed the root cause: an unrepairable internal short circuit between the internal PCB layers of the Engine Control Unit (ECU). Because Mercedes-Benz chose to mount this sensitive electronic module directly to the top of the hot engine block, it is subjected to extreme thermal cycling and vibration. This predictable thermal degradation causes the internal board layers to delaminate and short out. When this internal short occurs, the ECU instantly dies and shuts down the entire vehicle without warning. This is a severe, life-threatening engineering defect. A safety investigation is urgently needed to address the mounting location and thermal failure rate of M276 ECUs before a sudden high-speed stall results in a fatal collision.

Filed Sep 23, 2026 · Acceleration, Brakes · NJ

On 8/28/2026, my Mercedes-Benz GLE 350 (W166, M276 engine) experienced a sudden, catastrophic engine stall while driving in active traffic. There was no Check Engine Light (CEL), dashboard warning, or mechanical hesitation prior to the failure. The vehicle instantly lost all propulsion, power steering, and power braking assist, creating an extreme crash hazard and requiring immense physical effort to maneuver the dead vehicle off the roadway. Independent diagnostic teardown by a module specialist confirmed the root cause: an unrepairable internal short circuit between the internal PCB layers of the Engine Control Unit (ECU). Because Mercedes-Benz chose to mount this sensitive electronic module directly to the top of the hot engine block, it is subjected to extreme thermal cycling and vibration. This predictable thermal degradation causes the internal board layers to delaminate and short out. When this internal short occurs, the ECU instantly dies and shuts down the entire vehicle without warning. This is a severe, life-threatening engineering defect. A safety investigation is urgently needed to address the mounting location and thermal failure rate of M276 ECUs before a sudden high-speed stall results in a fatal collision.

Filed Mar 23, 2023 · Transmission · GA

Vehicle became disabled while owner was driving. Car stopped accelerating and stalled in the roadway. Vehicle was inoperable and had to be towed to the dealership. According to the Mercedes Service technician the rear output shaft bearing went out, tore the splines off of the trans output shaft yolk and 7 bolts then broke off in the case for the intermediate plate. Thus requiring a new transmission.

Filed Feb 28, 2023 · Body, Fuel system · 59,831 miles · FL

The contact owns a 2016 Mercedes-Benz GLE350. The contact stated while driving approximately 30 MPH, the vehicle stalled and lost motive power. The vehicle failed to restart. No warning lights were illuminated. The vehicle was towed to the residence. The contact stated that the vehicle was then towed to a local dealer, where it was diagnosed that an unknown module needed to be replaced; however, no repair was completed. The vehicle was then taken to an independent mechanic, where an unknown module was replaced. The vehicle was repaired; however, the failure reoccurred. Additionally, the contact stated that after a rainstorm there was water in the spare tire wheel well. The vehicle was taken back to the independent mechanic, where unknown repairs were completed. The contact had received notification of the federal safety agency Campaign Number: 22V955000 (Fuel System, Diesel, Fuel System, Gasoline). The manufacturer was not made aware of the failure. The failure mileage was 59,831.

Filed Feb 24, 2023 · Fuel system · 80,000 miles · NJ

The contact owns a 2016 Mercedes-Benz GLE350. The contact received notification of the federal safety agency Campaign Number: 22V955000 (Fuel System, Diesel, Fuel System, Gasoline) however, the dealer was notified prior to the failure and the contact was informed that no appointments were available for another 6 weeks. The contact stated that while driving at an undisclosed speed, the vehicle stalled without warning; however, the contact was able to restart the vehicle, but the failure recurred. The contact stated that while driving at normal speeds, the vehicle stalled. Several warning lights then illuminated. The dealer was notified of the failure and the contact was advised that an appointment could be scheduled 6 weeks away. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 80,000.

Filed Feb 10, 2023 · Fuel system · 87,000 miles · CA

The contact owns a 2016 Mercedes-Benz GLE350. The contact stated while driving at various speeds, the vehicle would suddenly lose motive power and stall. Eventually, the vehicle could not be restarted and was towed to the local dealer to be diagnosed. The contact was made aware of water intrusion into the trunk space of the vehicle which caused the fuel pump and other parts of the vehicle to become damaged and eventually failed. The contact indicated that the VIN was included in the federal safety agency Campaign Number: 22V995000 (Fuel System, Diesel, Fuel System, Gasoline). The manufacturer was not yet notified of the failure. The failure mileage was 87,000.

Filed Nov 17, 2021 · Fuel system · NY

Fuel injection system causing stalling on the road